Folding chair



(No Model.)

H. HILL.

FOLDING CHAIR.

No. 430,952. Patented June 24, 1890.

fnranfor rests.

UNITED STATES PATENT OFFICE.

HUGO HILL, OF DETROIT, MICHIGAN.

FOLDING CHAIR.

SPECIFICATION forming part of Letters Patent No. 430,952, dated June 24,1890.

Application filed November 13, 1889. Serial No. 380,166. (No model.)

To all whom it may concern.-

Be it known that I, HUGO HILL, of Detroit, in the county of WVayne andState of Michigan, have invented a new and useful Improvement in FoldingChairs, of which the following is a specification. My invention consistsin an improvement 1n folding chairs hereinafter fully described andclaimed.

Figure 1- is a vertical central section S1110?- ing the chair open andindicating in dotted lines the position of the various parts when thechair is folded. Fig. 2 is a vertical longitudinal section through oneof the arm- Fig. 3 is a side elevation of one of the hinges which Iprefer to use. Fig. 4 is afront elevation of the same. Fig. 5 is asection on line at a, Fig. 1.

D represents a standard F whose base is adapted to rest on and besecured to a floor by means of bolts or screws.

A represents the seat of the chair, hinged at its rear corners to thestandard D.

H represents an arm-rest hinged at its rear end to the standard D by ahinge I, preferably made as hereinafter described.

B represents a brace, whose lower end is hinged at the point C to aprojection on the standard D. The upper end of the brace B is pivoted atthe point G, Figs. 1 and 2, to a perforated block L, adapted to slide onan iron rod M, which lies in a recess K in the under part of arm-rest H,the ends of said rods M being secured to the ar1n-rest at 7c. The braceB is slotted on its inner surface upwardly from the point where itintersects the seat when the chair is open, and this slot is coveredwith a slotted plate E, Figs. 1 and 5. Each. side of seat A ispreferably gained out sufficiently to receive or partly receive thebraces B, and is provided with a pin J, Figs. 1 and 5, firmly set in theedge of seat A, projecting through the slot in plate E and provided witha flattened head F, Fig. 5, lyingin the slot in brace B, the pin J lyingagainst the lower end of the slot in plate E,-when the chair is open.

Figs. 3 and 4 represent a form of hinge which I prefer, though of courseany suitable form may be used. In this form of hinge the leaf aisprovided at its end with a cylindrical jaw 0, open at one side,while-the other leaf f is provided at its end with a cylinderb, adaptedto fit within the jaw c, and the parts are held together by twoclamping-washers e e and a bolt d, which passes through cylinder 1) andholds the washers against the end of said cylinder and of the jaw 0.Each leaf of the hinge is of course provided with suitable holes orscrews, as shown in Figs. 3 and 4:. It will of course be understood thatthe arrangement of arm-rest II and brace B is the same on each side ofthe chair.

The operation of my inventionis as follows: IVhen the chair is open, asindicated in full lines in Fig. 1, the pins J in the seat A strikeagainst the bottoms of the slots in in the plates E, and by the braces,together with the hinges which fasten the seat to the standard, the seatis supported. At the same time the sliding blocks L strike against theouter ends of the slots K in arm-rest H and hold the said arm-rests in afixed position. Now if the seat A be raised the sliding action of pins Jin the slots in plates E causes the braces 13 to turn on their hinges C,and this throws the upper ends of braces B toward the standard, thussliding the blocks L along the rods M, and simultaneously foldingtheseat, the arm-rests, and the braces against the standard. (Indicated indotted lines in Fig. 1.)

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In combination with an upright standard, a seat hinged at its rearend to said standard, two arm-rests hinged to the sides of said standardabove the seat, and two braces hinged at their lower ends to saidstandard below the seat, having a sliding connection at their upper endswith the armrests to swing to and from the standards on the hinge as acenter, and having an intermediate pin-and-slot connection with oppositesides of the seat, substantially as shown and described.

2. In connection, with the upright standard D, the seat A, hingedthereto, the slotted arm-rests H H, each hinged to the standard, theslotted braces B B, hinged at their lower ends to the standard, the pinsJ, connecting the seat with the braces, and the blocks L, pivoted tobraces BB and mounted on rods M, substantially as shown and described.

HUGO HILL.

Witnesses:

EUGENE H. HILL, HENRY B. Lornnor.

